Answer: Find the surface area with the formula 
Step-by-step explanation:
<u><em> Since you did not provide the figure, I will give you a general explanation about how to solve this exercise.</em></u>
By definition, the surface area of a rectangular prism can be calculated with the formula shown below:

Where "SA" is the surface area of the rectangular prism, "w" is the width of the rectangular prism, "l" is the length and "h" is the height of the rectangular prism.
Therefore, if you know the length, the width and the height of the rectangular prism, you can follow these steps in order to calculate how much glass was used to make the tank. The procedure is:
Step 1: You must substitute the values of "l", "w" and "h" into the formula.
Step 2: Finally, you must evaluate in order to get the surface area of the rectangular prism (This value is the amount of square inches that was used to make the tank).
First off who needs 75 cards?? Emily signed 2/5 or .4 of 75 so EMILY SIGNED 30 CARDS (caps helps me stay organized) Josh, that slacker, signed 1/9 or .11(repeating) of the remaining 45 cards so JOSH SIGNED 5 CARDS there are 40 unsigned cards and Tatiana signed 2/10 or .2 of them so TATIANA SIGNED 8 CARDS so 40-8=32 there are 32 cards left
Answer:
21
Step-by-step explanation:
There are 1 1/2 hip hop classes for 1 ballet class.
Sum divided by count. Add up all the numbers and divide it by how many numbers it is.